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Time-dependent Green's functions of the cosmic ray equation of transport
Authors:G M Webb
Institution:(1) Max-Planck-Institut für Aeronomie, Katlenburg-Lindau, Germany
Abstract:Two spherically symmetric time-dependent Green's functions of the equation of transport for cosmic rays in the interplanetary region are derived by transform techniques. The solar wind velocity is assumed radial and of constant speedV. In the first model the radial diffusion coefficient kappa=kappa0 r (kappa0 constant), and in the second solution kappa=kappa0= constant. The solutions are for monoenergetic, impulsive release of particles from a fixed heliocentric radius. Integration of the solutions over timet, fromt=0 tot=infin, gives the steady-state Green's functions obtained previously.
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